MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a330dfb1074f6b02e49e5835f820821b0e75f691dac46057332381d172f640ea. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

AgentTesla

Vendor detections: 8

Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash:	a330dfb1074f6b02e49e5835f820821b0e75f691dac46057332381d172f640ea
SHA3-384 hash:	4579bd6732da509e735e18ab3e311692efbc8e96b245fd522f380d93ad1e1f3eb9f4fabdcc3387e5b8a4c00d5c0a0c1c
SHA1 hash:	84361e80a35815a550fc5a8f57ecbbd40beca742
MD5 hash:	7060cf54fee7f79f72cab2f6f634cee4
humanhash:	tennis-green-double-jupiter
File name:	PI for fish finder from OVA.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	629'248 bytes
First seen:	2020-07-30 07:35:05 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:0uwY5y3JCLgytFmY/GQ25XuT0G7l4A+qbUUnmZlnfNYCKngspDuEoDiB47:0uh5ykLgy/GQqsvlF+aCKgspDuVie7
Threatray	10'674 similar samples on MalwareBazaar
TLSH	9CD4E168B6E0C924CBBE5179E2AD4440DFFCA185A537D729398463BB2DE33A2F40417D
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: saiyangmarine.com
Sending IP: 209.58.149.66
From: Nicole Ji<sales300@saiyangmarine.com>
Subject: RE: RE: PI for fish finder from OVA
Attachment: PI for fish finder from OVA.zip.gz (contains "PI for fish finder from OVA.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/35371/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Unauthorized injection to a system process

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/403302

Signature

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Found malware configuration

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: MSBuild connects to smtp port

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file access)

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/a330dfb1074f6b02e49e5835f820821b0e75f691dac46057332381d172f640ea/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-07-30 07:37:05 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=umyn7mihj5vqfze6la27qiecdmhhl5ur3lcgavzteoa5c4xwidva._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

3260e8fc7872ff596b2f284a7731619f46311c301be2b04f0910b5f7887b8fb9

AgentTesla

38620b79b0821d5fc2a7e230a3e2c31f30773a749451c3618414d83f82e884e9

AgentTesla

473a8f77c574d92bdce8c6537a67e053162b745128fcfbb48a873dc57e6e5321

AgentTesla

718524efef50f9e043f3db594db14aa1f5e3fba213539b5b219638d089937afe

AgentTesla

7594b8b308f28ea96093a6b31428c1db08313a9bbe832b483485101c3b36cf17

AgentTesla

8137453fed9c0a1397eca9dd59e64141fffbd6cabf760d420adf44d4a049e40a

AgentTesla

98870d9c6fd20e8f2737274c3e20cf222b0c82428e77eb470863f10b00c6838c

AgentTesla

abe7a852074e704601e7fff625aa43e93ba71c6f0811aef9262b78e725df1278

AgentTesla

fb48b5cc967c5bea1799607218168a28acf394c89b5d89de2b7a98ad1a2e0c8c

AgentTesla

+ 10'664 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger trojan stealer spyware family:agenttesla

Link:

https://tria.ge/reports/200730-8dgjscbf56/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetThreadContext

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Reads user/profile data of local email clients

AgentTesla

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Suspicious File

Score:

0.45

Link:

https://yomi.yoroi.company/submissions/a330dfb1074f6b02e49e5835f820821b0e75f691dac46057332381d172f640ea

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	CAP_HookExKeylogger Create hunting rule
Author:	Brian C. Bell -- @biebsmalwareguy
Reference:	https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar